Oil-lamp



(No Model.) C GOLAHAN 2 Sheets-Sheet 1.

OIL LAMP.

No. 3|63,284. Patented May 17, 1887.

2 Sheets-Sheet 2. v

(No Model.) y

C. COLAHAN.

` OIL LAMP. No. 363,284.

Patented May 17, 1887.

Y CHARLES COLAHAN, OF CLEVELAND, OHIO.

OlLeLAlVlP.

SPECIFICATION forming part of Letters Patent No. 363,284, dated May 1'7, 1887.

Application filed January 10, 1887. Serial No. 223,931. (No model.)

To all whom it may concern.-

Be it known that I, GHARLns Comi-IAN, of the city of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Oil- Lamps, of which the following is a specification, reference being had to the accompanying drawings.

My improvements relate to that class o lamps generally known as student-lamps,7 being movable and adapted for use upon tables, &c.; and it consists of the deviceshereinafter described, and succinctly specified in my appended claims.

In the accompanying drawings, Figure 1 is a side elevation of a lamp embodying my improvements. Fig. 2 is a vert-ical section of the same, partly in elevation. Fig. 3 is a top or plan view. Fig. 4 is a horizontal section on the line x of Fig. l. Fig. 5 is a vertical seetional view of the reservoir, and Fig. 6 is a vertical sectional view of the fountain detached.

A indicates the oilreservoir; A', the fount ain or oil-cup; C, thestandard; C', the base or pedestal; D, the removable carrying or sustaining ring screwed onto the top of thestandard.

E indicates the thumbscrew` for adjusting the lamp vertically upon the standard.

F indicates the tube leading out of the oilreservoir to the burner G.

H is the shade or reflector resting on a support, I, secured to the outside of the oil-reservoir, as illustrated, 4or in any convenient manner.

L indicates a tube in the center of the oilreservoir, through which the standard passes.

M indicates a corresponding larger tube in the fountain or oil-cup adapted to fit over the tube L. l

a indicates the fountainevalve, which is of ordinary construction and works in the usual manner.

It will be observed that the reflector H is not circular, but is nearly perpendicular upon the side next to the oil-reservoir, and much more inclined upon the opposite side. The effect of this construction is to permit the burner to be brought near to the standard, and also to reflect the light mainly out upon the side of the burner, away from the reservoir, where it is usually most needed.

It will be observed that the oil-pipe F eX- tends around the base of the oil-reservoir, the

object being to avoid undue heating of the oil within the reservoir. .By placing the oil-reservoir andfountain around the standard and constructing the lamp shade or reflector as described I greatly reduce the lateral space occupied by the lamp, as well as somewhat reduce the weight of the lamp and cheapen its construction. At the same time I do not take ther center of gravity materially away from the center of the base, and therefore do not incur any liability of the lamps tipping over thatis of any practical consequence.

It will also be observed that with my improved construction no oil comes in contact with the standard. There is therefore no necessity for using a packing or making a specially-tight joint around the standard, and the oil is not liable to escape down the standard, as in most students lamps, all of which material advantages are due to my improvements.

To iill the lamp, it is only necessary to unscrew the ring D, remove it, and take out the cup in the usual manner, fill it with oil, and then replace it over the standard and screw on the ring D.

Having thus described my improvements, what I claim to be new, and desire to secure by Letters Patent of the United States, is

l. The combination of the standard C, the removable ring D, the reservoir A, and the fountain A', provided with tube M, the reservoir and fountain both surrounding the standard, substantially as set forth.

2. The combination, with the standard, of the reservoir A, having the central tube, L, around the standard, and the oil-cup A', having the central tube, M, fitting over the tube L, substantially as set forth.

3. The combination, with an oil-reservoir surrounding the standard of astudents lamp, of a burner and reflector both secured at one side of the reservoir, the reflector being nearly perpendicular on the side next the reservoir, and much more inclined on the opposite side, whereby the lateral space occupied by the lamp is materially reduced, substantially as set forth.

In testimony whereof I have hereunto snbscribed my name.

oHARLns ooLAHAN.

lVitncsses:

N. Wnirrrn Oris, M. H. GOLAHAN.

IOO 

